<template>
  <div class="login">

    <el-form ref="loginForm" v-show="dlfs" :model="loginForm" :rules="loginRules" class="login-form">
      <el-button size="mini" @click="qiehuan" style="float: right">{{dlfs?'飞书扫码登录':'账号密码登录'}}</el-button>
      <h3 class="title" style="width: 100%">业务管理系统</h3>

      <div id="fslogin" style="text-align: center"></div>
    </el-form>
    <el-form ref="loginForm" v-show="!dlfs" :model="loginForm" :rules="loginRules" class="login-form">
      <el-button size="mini" @click="qiehuan" style="float: right">{{dlfs?'飞书扫码登录':'账号密码登录'}}</el-button>
      <h3 class="title" >业务管理系统</h3>

      <el-form-item prop="username" >
        <el-input
          v-model="loginForm.username"
          type="text"
          auto-complete="off"
          placeholder="账号"
        >
          <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          auto-complete="off"
          placeholder="密码"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="code" v-if="captchaEnabled">
        <el-input
          v-model="loginForm.code"
          auto-complete="off"
          placeholder="验证码"
          style="width: 63%"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" @click="getCode" class="login-code-img"/>
        </div>
      </el-form-item>
      <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
      <el-form-item style="width:100%;">
        <el-button
          :loading="loading"
          size="medium"
          type="primary"
          style="width:100%;"
          @click.native.prevent="handleLogin"
        >
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
        <div style="float: right;" v-if="register">
          <router-link class="link-type" :to="'/register'">立即注册</router-link>
        </div>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2021-2023 KonBAI All Rights Reserved.</span>
    </div>
  </div>
</template>
<script src="https://lf-package-cn.feishucdn.com/obj/feishu-static/lark/passport/qrcode/LarkSSOSDKWebQRCode-1.0.3.js">
</script>

<script>
import {getCodeImg, qrcodeLogin} from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt } from '@/utils/jsencrypt'

export default {
  name: "Login",
  data() {
    return {
      dlfs:true,
      feishu :{
        dialogVisible: false,
        QRLoginObj: '', // 是否生成了二维码
        client_id: 'cli_a60117dd0f35100e', // 应用的AppID
        redirect_uri: 'http://8.138.134.68/', // 应用配置重定向的地址
        fs_url: ''
      },
      codeUrl: "",
      loginForm: {
        username: "",
        password: "",
        rememberMe: false,
        code: "",
        uuid: ""
      },
      loginRules: {
        username: [
          { required: true, trigger: "blur", message: "请输入您的账号" }
        ],
        password: [
          { required: true, trigger: "blur", message: "请输入您的密码" }
        ],
        code: [{ required: true, trigger: "change", message: "请输入验证码" }]
      },
      loading: false,
      // 验证码开关
      captchaEnabled: true,
      // 注册开关
      register: false,
      redirect: undefined
    };
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true
    }
  },
  mounted() {
    this.handleFeishu();
    let code = this.$route.query.redirect.split('=')[1]
    if(code!==undefined && code!==''){
      this.$store.dispatch("QRLogin", code).then(() => {
        this.$router.push({ path: this.redirect || "/" }).catch(()=>{});
      }).catch(() => {
        this.loading = false;
        if (this.captchaEnabled) {
          this.getCode();
        }
      });
    }else{

    }

  },
  created() {
    this.getCode();
    this.getCookie();

  },
  methods: {
    qiehuan(){
      this.dlfs = !this.dlfs
    },
    handleFeishu(){
      this.feishu.fs_url = "https://passport.feishu.cn/suite/passport/oauth/authorize" +
        "?client_id="+this.feishu.client_id+"&redirect_uri=" + this.feishu.redirect_uri +
        "&response_type=code&state=state123456",
      this.QRLoginObj = QRLogin({
        id:"fslogin",
        goto:  this.feishu.fs_url,
        width: "270",
        height: "270",
        style: "width:270px;height:270px"//可选的，二维码html标签的style属性
      });
      if (typeof window.addEventListener != 'undefined') {
        window.addEventListener('message', this.handleMessage, false);
      } else if (typeof window.attachEvent != 'undefined') {
        window.attachEvent('onmessage', this.handleMessage);
      }
    },
    handleMessage(event) {
      console.log(event)
      var origin = event.origin;
      if (this.QRLoginObj.matchOrigin(origin)) {
        var loginTmpCode = event.data;

        window.location.href = this.feishu.fs_url+'&tmp_code=' +loginTmpCode;


      }
    },
    getCode() {
      getCodeImg().then(res => {
        this.captchaEnabled = res.data.captchaEnabled === undefined ? true : res.data.captchaEnabled;
        if (this.captchaEnabled) {
          this.codeUrl = "data:image/gif;base64," + res.data.img;
          this.loginForm.uuid = res.data.uuid;
        }
      });
    },
    getCookie() {
      const username = Cookies.get("username");
      const password = Cookies.get("password");
      const rememberMe = Cookies.get('rememberMe')
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
      };
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true;
          if (this.loginForm.rememberMe) {
            Cookies.set("username", this.loginForm.username, { expires: 30 });
            Cookies.set("password", encrypt(this.loginForm.password), { expires: 30 });
            Cookies.set('rememberMe', this.loginForm.rememberMe, { expires: 30 });
          } else {
            Cookies.remove("username");
            Cookies.remove("password");
            Cookies.remove('rememberMe');
          }
          this.$store.dispatch("Login", this.loginForm).then(() => {
            this.$router.push({ path: this.redirect || "/" }).catch(()=>{});
          }).catch(() => {
            this.loading = false;
            if (this.captchaEnabled) {
              this.getCode();
            }
          });
        }
      });
    }
  }
};
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/login-background.jpg");
  background-size: cover;
}
.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 400px;
  padding: 30px 30px 10px 30px;
  .el-input {
    height: 38px;
    input {
      height: 38px;
    }
  }
  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  height: 38px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}
.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}
.login-code-img {
  height: 38px;
}
</style>
